Abstract: The present invention relates to a free flowing powder composition with a particle size at most 800 ?m comprising: (a) 100 parts by weight of one or more styrenic block copolymers, at least one of which being a block copolymer (a1) comprising at least one block S having a glass transition temperature Tg above 25° C., which contains polymerized units of a vinylaromatic monomer and at least one elastomeric block B/S having a Tg below 25° C.

Abstract: The present invention relates to a free flowing powder composition with a particle size at most 800 &mgr;m comprising: (a) 100 parts by weight of one or more styrenic block copolymers, at least one of which being a block copolymer (a1) comprising at least one block S having a glass transition temperature Tg above 25° C., which contains polymerized units of a vinylaromatic monomer and at least one elastomeric block B/S having a Tg below 25° C., which contains polymerized units of both a vinylaromatic monomer and a conjugated diene in random sequence, wherein the ratio of block S to block B/S is from 1 to 40% by volume and wherein the amount of the conjugated diene is less than 50% by weight on the whole of the copolymer; optionally (b) 0 to 200 parts by weight of plasticizing oil; optionally (c) 0 to 200 parts by weight of a compatibilising resin; and optionally (d) a dusting agent in an amount of from 0 to 10% by weight based on total weight of composition.

Abstract: Free flowing powder composition with a particle size of 800 .mu.m or less, comprising(a) 100 parts by weight of a block copolymer, comprising at least one poly (predominantly monovinyl aromatic hydrocarbon) block and at least one substantially hydrogenated poly(predominantly conjugated diene) block and having a monovinyl aromatic hydrocarbon content in the range of from 10 to 60% by weight, preferably 10 to 35% by weight, based on total weight of block copolymer;(b) 100 to 200 and preferably from 100 to 150, parts by weight of a plasticiser;(c) 50 to 100, preferably 70 to 90, parts by weight of a resin, which is compatible with the substantially hydrogenated poly(conjugated diene) block; and optionally(d) a dusting agent in amount of from 0 to 10% by weight and preferably 0.5 to 3% by weight, based on total weight of composition;process for its preparation and flexible elastic sterilisable homogeneous layers derived from it.

Abstract: Intermediate binder composition for use in toner compositions, comprising (a) a block copolymer comprising one predominantly poly(monovinyl aromatic) block per molecule and one predominantly poly(conjugated diene) block per molecule, the latter blocks being selectively hydrogenated to a residual unsaturation degree of 20% or lower, in an amount of from 5 to 35% by weight relative to the weight of the intermediate binder composition, and a microcrystalline wax, having a weight average molecular weight of from 1000 to 10,000, and having a drop point of 75.degree. C. or higher (measured according to ASTM D 3104), in an amount of from 95 to 65% by weight relative to the weight of the binder composition. Also covered are electrophotographic toner compositions containing the intermediate binder composition and magnetizable particles.